Gas pipe flashlight

This instructable will show you how to build a LED flashlight.

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Step 1: Tools and materials needed

Tools
Soldering Iron
Hot Glue gun
Nail clippers
Wire strippers
Marker

Materials
1/2" Pipe Cap
4.5" x 1/2" Threaded Pipe
1/2" to 3/4" Pipe adapter
Perforated circuit board
Spring
Wire
Solder
Hot glue sticks
10 5mm LEDs
Sheet of foam
Shears or Dremel with cutting wheel

Nemesistant says: Aug 6, 2012. 12:05 PM

Working on making one of these out of copper pipe and then reacting it with zinc to give it a nice brass layer and more of a steampunk look.

tyler303047 says: Aug 31, 2011. 10:16 PM

YAY something that can show you path AND maim someone.
jk a very very useful instructable.

snowluck2345 says: Apr 25, 2011. 7:18 PM

try bringing this on an airplane

Nyanman says: Feb 17, 2011. 11:13 PM

sweet!
both a flashlight AND a holdout weapon.
seriously, how much does it weigh?

kurshiukas says: Aug 13, 2010. 8:36 AM

Its awsome!!!!!!!!!!

Wasagi says: Aug 8, 2010. 6:42 PM

Nice, I was toying around with the idea of making something like this with a shower head, but I never go around to it. Nice work!!!

DaPope says: Aug 7, 2010. 1:22 PM

Very cool, I picked up the pipe yesterday. Just gotta get some LEDs and we're in business. My wife also thinks it's really cool and wants me to make her one to keep in her car!

rossjima says: Aug 7, 2010. 10:03 AM

I'm constantly crushing, breaking flashlights on the farm. I have to make one of these. What about extending it so it holds more batteries? Would that make it brighter. It would up the voltage for sure but I don't know much about how leds behave and are speced.

Skyfinity says: Aug 3, 2010. 2:18 PM

http://blog.makezine.com/archive/2010/08/flashlight_from_galvanized_iron_pip.html
Congratulations on bing featured on the Make: Magazine blog!!! Way Cool.

qxnixrfnaozqqx (author) says: Aug 3, 2010. 4:56 PM

Awesome!

swinfos says: Aug 3, 2010. 4:18 AM

sorta looks like a lightsaber

StickStoneBone says: Aug 2, 2010. 11:05 AM

This is brilliant in it's straight-forward and effective design.

brahmdanger says: Aug 1, 2010. 11:39 PM

nm, i didnt realize that the pipe itself was the negative conductor. Here is the one i made. thanks again!

qxnixrfnaozqqx (author) says: Aug 2, 2010. 10:13 AM

Well done.

brahmdanger says: Aug 1, 2010. 9:39 PM

this is an awesome idea, im currently trying to biuld a flashlight just like this but im having trouble completing the circuit on the negative end of the batterries, could you post more details about how you wired this? Thanks for the great instructable!

qxnixrfnaozqqx (author) says: Aug 1, 2010. 11:17 PM

The trick is to conduct electricity from the negative terminal of the battery through the flashlight. This is done by putting a spring inside the case which touches the negative side of the battery to the steel case. Diagram attached.